Labtex Buchner Rings

Buchner Rings help efficient and safe vacuum filtration. Vacuum filtration is a technique for separating a solid product from a solvent or liquid reaction mixture. The mixture of solid and liquid is poured through a filter in a Buchner funnel. The solid is trapped by the filter and the liquid is drawn through the funnel into the flask below, by a vacuum. Buchner Rings give a vacuum tight seal and flask stability when performing filtration on the worktop. These substantial, profiled natural compound rubber mouldings (60 shore) are for use with Buchner funnels, flasks, crucibles and similar filtration equipment. The broad flange and large surface contact gives an excellent vacuum tight seal whilst the rings are simple to remove and offer excellent support to even the largest funnels. Labtex Buchner Rings are engineered for long life and durability. Buchner Rings from Labtex can be used with any vessels with neck sizes between approximately 24mm and 68mm diameter and are available individually or as a set of 5.